Reference Guide

Virtual Router Redundancy Protocol (VRRP) | 1487
vrrp-group
c e s
Assign an interface to a VRRP group.
Syntax
vrrp-group vrid
Parameters
Defaults
Not configured.
Command Modes
INTERFACE
Command
History
Usage
Information
The VRRP group only becomes active and sends VRRP packets when a virtual IP address is
configured. When you delete the virtual address, the VRRP group stops sending VRRP packets.
Starting in release 8.4.1.0, you can configure a VRRP group on an interface in a non-default VRF
instance.
E-Series ExaScale only: You can configure up to 16 VRRP groups per VLAN and up to 511 groups
on all VLANs.
E-Series ExaScale and TeraScale only: Starting in release 8.4.2.1, you can configure up to 255
VRRP groups per interface if VRF microcode is not loaded, and up to 15 groups if VRF microcode is
loaded.
E-Series ExaScale and TeraScale only: Starting in release 8.4.2.1, the VRID used by the VRRP
protocol changes according to whether VRF microcode is loaded or not:
• When VRF microcode is not loaded in CAM, the VRID for a VRRP group is the same as the
VRID number configured with the vrrp-group or vrrp-ipv6-group command.
• When VRF microcode is loaded in CAM, the VRID for a VRRP group is equal to 16 times the
vrrp-group or vrrp-ipv6-group vrid number plus the ip vrf vrf-id number.
For example, if VRF microcode is loaded and VRRP group 10 is configured in VRF 2, the VRID
used for the VRRP group is (16 x 10) + 2, or 162. This VRID value is used in the lowest byte of
the virtual MAC address of the VRRP group and is also used for VRF routing.
vrid
Enter the virtual-router ID number of the VRRP group.
VRID range (C-Series and S-Series): 1-255.
VRID range (E-Series): 1-255 when VRF microcode is not loaded and 1-15 when VRF
microcode is loaded.
Version 8.4.2.1 When VRF microcode is loaded in CAM, the range of valid VRID values on the
E-Series changed to 1-15.
Version 8.4.1.0 Support was added for configuring a VRRP group on an interface in a non-default
VRF instance.
Version 7.6.1.0 Introduced on S-Series
Version 7.5.1.0 Introduced on C-Series
pre-Version 6.2.1.1 Introduced on E-Series